Vibrator



H. F. LIEDTKE. I

VIBRATOR.

APPLICATION FILED NOV; 29, 1919.

mama July I3 VIBRATOEBI.

Specification of Letters Patent.

Patented July 13, itfifitlo Application filed November 29, 1919. Serial 1V0.,341,501.

To all wit/OWL it may concern Be it known that T, HUGO F. LIEDTKE, a citizen of the United States, residing at Hagerstown, in the county of Washington and State of Maryland, have invented cer tain new and useful Improvements in Vibrators, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to fluid-operated vibrators adapted for association with any article, device, machine, or part thereof that it is desired to vibrate or shake to facilitate its action or the performance of a process or operation in which it is used. For example, it is susceptible of being connected with a screen or sieve to aid in the screening or sifting of sand, gravel, or other materials, and it can be associated with a mold ing-machine or a mold to loosen the pattern from a mold It is an. object of the invention to pro vide a vibrator that is simple in arrangement and efficient and economical of opera tion, and with this in view the device includes a casing arranged to be secured to the part to be vibrated and inclosing a centrally-journaled unbalanced wheel that is rotated by the impact of fluid, such as air or steam, against buckets, blades, or the like on the periphery thereof.

Another object of the invention is so to form and arrange the parts and details of the device that they may be easily assembled and disassembled.

When read in connection with the descrip tion herein, the details of construction and arrangement of parts contemplated by the invention will be apparent from the accompanying drawing, forming part hereof, wherein an embodiment of the invention is disclosed, for purposes of illustration.

While the disclosures herein exemplify what now is considered to be a preferable embodiment of the invention, it is to be understood that it isnot the intention to be limited necessarily thereto in interpretation of the claims, as modifications and adaptations within thev limits of the claims can be made without departing from the nature and spirit of the invention,

ike reference-characters refer to corresponding parts in the views of the drawing,

' of which prior to drawing the pattern. v

- ed ends of Figure 1 is a sectional view on the line 11, Fig. 2;

Fig. 2 is a sectional Fig. 1, and

Fig.3 is a side elevation.

aving more particular reference to the drawing, 1- designates a mount or base having bolt-holes 5 for attaching the device to the article or other thing to be vibrated.

An annular casing member 6 is mounted on, and preferably formed integrally with, the base, and it has an extension or enlarge ment 7 for accommodation of an inlet 8 leading to a constrictednozzle 9 arranged to discharge fluid tangentially into the casing. An exhaust-outlet 10 also is in the annular casing member, and preferably it is alined with the nozzle.

The annular casing member has on each margin an inclined seat 11 arranged to receive the correspondingly-shaped periphery of a circular plate or cap 12 constituting a side of the casing. Each plate has a centrally-positioned outwardly-extending boss 13, which is shaped laterally to receive a wrench or other turning-tool, and which also affords accommodation for a threaded axially positioned interior recess 14. The plates 12 are held in position against the marginal seats 11 by a shaft 15, the threadwhich "are brought to position in the recesses 14: by turning the plates.

A wheel center on the shaft 15 in the casing, the hub of the wheel being bored with small clearance to fit the shaft and having a recess 17 opening to the shaft packed with lubricant. The wheel is unbalanced in any suitable manner, as by an integrall -formed weight 18 at one side of its axis. Tadially-extend ing buckets, blades, or other projections 19 on the periphery of the Wheel are arranged to move into the line of discharge from the nozzle 9 as the wheel is rotated.

The inlet 8 is screw threaded to take the threaded end of a connection arranged to be received by an end of a hose or other suitable conductor of air or other fluid under pressure.

The relatively few parts of the device may be assembled by placing the wheel on the shaft and then turning the side plates or caps onto the ends of the shaft and against the annular casing member; and disassemview on the line 22,

ill

16 is journaled at its geometrical be effected by reversal of that op- Accordingly, it is easy to remove, and replace parts or substitute new pack the recess 17 with lubribly may eration. repair, ones, and to cant.

lfn use the vibrator is secured to the thing to be vibrated or shaken. For example, when it is desired to vibrate a screen to 'assist in the screening operation, the vibrator will be attached to any suitable part of the screen, an air-hose in communication with a source of compressed air is fastened to the connection 20, and when air is turned on it will be projected at high velocity against the blades or buckets of the wheel and the wheel rotated Since the wheel is unbalanced, bution of Weight therein, vibration will be set, up and maintained and transmitted to the screen. Rapid vibration in the screen thereby produced will assist in the screening of the material and avoid the necessity of shaking or vibrating manual or other mechanical means.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is--- 1. A vibrator comprising a fixed shaft, an unbalanced wheel journaled on said shaft and having peripheral projections, and a nozzle arranged to discharge fluid under pressure against said projections whereby to rotate said wheel.

at high speed.

2. A vibrator comprising a fixed shaft,an'

unbalanced wheel centrally journaled on said shaft zitlld. having peripheral projections, and a nozzle arranged to discharge fluid under pressure against said projections whereby to rotate said wheel.

3. A vibrator comprising a mount ardue to unequal distrithe screen either by unbalanced wheel' journaled on said nozzle arranged ranged to be secured to a part to be vibrated, a fixed shaft thereon, an unbalanced wheel journaled on said shaft and having peripheral projections, and a nozzle arranged to discharge fluid under pressure against said projections whereby to rotate said Wheel.

4.. A vibrator comprising a mount arranged to be secured to a part to be vibrated, a casing member thereon having a fluid-supply inlet and a passage leading therefrom to the interior and an exhaust-outlet, casing sides, a shaft holding said sides against sai casing member, and an unbalanced wheel journaled on said shaft and having peripheral projections arranged to have fluid from said passage discharged thereagainst and thereby to be rotated.

5. A vibrator comprising a mount arranged to be secured to a part to be vibrated, an annular casing member thereon formed with marginal seats and a fluid-supply inlet and a passage leading therefrom to the terior and an exhaust-outlet, circular side members having peripheries shaped to rest a shaft holding said on said marginal seats,

side members against sald seats, and 111ll11' balanced wheel journaled on said shaft and having peripheral projections arranged to have fluid from said passage discharged thereagainst and thereby to be rotated.

6. A vibrator comprising a fixed shaft, an shaft and having a lubricant-recess opening thereto and having peripheral projections, and a to discharge fluid under pressure against said projections whereby to rotate said wheel.

In testimony whereof I afiix my signature.

i-ineo r. LIEDTKE. 

